they were sent to afghanistan as part of president obama's troop surge. they're due to return home next month. >>> the sacrifice so many have made in the fight for freedom a stark indication this morning that more americans are unaware of the very origins of this holiday. listen to this. a new poll finds that 42% of americans don't know the u.s. declared independence, 1776, folks, and 24% don't know that we declared independence from the british. >> come on. >> most of them said they could not remember which country. >> i categorically cannot accept that. >> there you go. >> unbelievable. >> i would be curious to see what country they would pick. >> everything but britain. >> unbelievable.. >>> unbelievable. although this is of course, independence day, fourth of july. we're desperate for one day of great weather. we turn to you, stephanie roberts, from our great tampa station, wfds, in today for sam. for the very latest. stephanie. >> good morning. no pressures, since you have to deliver a good fireworks forecast to the nation. all eyes focused on our na